Portable molding machine



July 2s, 1931;

E. o". BEARDSLEY ET AL 1,815,999

PORTABLE MOLDING MACHINE E. o. BEARDSLEY E-r A1. 1,815,999

POTABLE MOLDING MACHINE Julyzs, 1931.

Filed Feb. 15, 1926 -4 Sheets-Sheet 2 July 28, 1931. E. o. BEARDSLEY ETAL 1,815,999

PORTABLE MOLDING MACHINE l Filed Feb. l5, 1926 4 Sheets-Sheet. 3

IIIIIIIIIIIIIIIlllllllllllll E. o. BEARDSLEY ET AL 1,815,999

PORTABLE MOLDING MACHINE Filed Feb., 15. 1926 4 sheets-sheet 4 fr, m

Malfzae/f? x v v man a 9% MJ WW 7 rizo vPatented July 28, 1931 miemeprice ELLMfERe. BEARDSLEY IAND WALTER F. PIPER, o'F emol-treo,-I'lnLINoIsy fAsYsIGNoRS 159 man B-EAJRDSLEY e: PIPER COMPANY, 0FiGHIGAGQ 'ILINoI-s, A CORPORATION on ILLINOIS PORTABLE fMoLDm-G MACHINApplication iiiea're'bruai-y 15, 1926. `Serial no. $8,180.

fiicieiii weight to siatlioii'arny 'suppcsit the jbase compriseslood-yportion kxvheh structure iwhich "will jsh'ed Lsand, so that Whethe ma'c'hlne fie being need, the "Sin/'id 'will not' accumulatethereon.

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mounted to swing with .jb .44;, en 'endls eiiii-veyiir eine. te. ripperwo vided with a bushing 7 0k. 3o

elevator is supported by a channelled column 60 which is secured at itslower end by bolts 60a to the top of the housing body 6. The idlersprocket 59, which guides the upper portion of the elevator chain 56, isVcarried by a shaft 59a which is supported by arms 597. The lowerportion of elevator chain 56 passes around sprocket 57 which is fixed toa cross-shaft 84. A sand supply ypocket 65, open at oneend, is formed inone end of the housing B to hold a supply of sand to feed the elevatorbuckets, and into which sand can be readily shovelled. Side walls 67 andinner walls 68, which form this pocket, are integral with the body6 ofthe housing B. A bridge wall 69 is integral with and extends betweenwalls 67. 'Shaft 84 (Fig. 4a) is mounted in bearings 70a and 7 0b whichare separately formed fromvwalls 67Yand are provided with flanges 7 OC,through which bolts y70d pass to secure the bearings inthe Wallsrespectively. The inner end of each of said bearings is provided with avgroove 70e in which packing 70f is held by a plate 70lg to prevent sandin the pocket 65 from working into these bearings.V Spring walls 70hhold plates .70g in said lbearings respectively. Each'bearing 70a, 70bis pro- These bearings are removably secured in the pocket walls bybolts 70d soY they may be readily removed whenl retting is necessary.

-Pocket 65 is preferably of considerable greater width than the elevatorbuckets, so it will haveV ample `capacity t0 keep the elevator suppliedwith sand. Agitator and feed blades al, in staggered series and inclinedto deliver sand transversely from the ends o f pocket 65 to the elevatorbuckets, are

fixed to drive-shaft 84 between walls 67 and the buckets. These bladesare formed on sectional hubs which are clamped to shaft 84 by bolts d2and exemplify means for feeding Vsand laterally to the buckets and forpreventing the sand from becoming packed in the' corners of the sandpocket. The bottom ofpocket 65 is open, as at 61, so that when themachine is lifted and moved from place to place, the sand will drop outof the pocket.V

Drive-shaft 84 lfor the elevator and feed blades l is driven by anelectric motor 68 and speed reducing gearing which are enclosed in thehousing B. Motor 68 is fixed to the base A adjacent `wall 68. Thisgearing comprises a pinion 71 on the motor shaft; a gear 72, meshingwith pinion 71, and journalled on a stub-shaft 73 which is fixedlysecured'by a pin 73at in one of the walls 67; aapinion 74, fixed torotate with gear 72; and a gear 7 5, meshing with pinion 74, and keyedto one end of shaft 84. This motor and driving mechanism are enclosed,so ythat vsand from the pocket and elevator will be excluded therefrom.Cups ,120, disf posed on the outside of the housing, are con-l nected bypipes t0 deliver lubricant to the bearings 7 0e and stub-shaft 73, sothey can be lubricated from the outside.

The body section 6 of the housing B is preferably formed separately fromthe base A, and is rigidly secured thereto by bolts 612 which extendthrough flanges 613 on the walls 67. YThe side plates 6 and 62 of thehousing are removable to provide convenient access to the parts enclosedby the housing. Side plate 6 is removably secured and clamped in placeby a nut 614 which is threaded to a bolt 615 which is fixed in the outerend of stub-shaft 72. Side plate 62 is removably secured and clamped inplace by a nut 616 which is threaded to a bolt 617 which has its innerend fixed in one of the walls 67. To remove either of the side plates,it is only necessary to remove the re,V

taining nut for it. VThese side plates extend around and form the lowercorner porr tions of the housing to provide ready accessibility to allportions of the interior of the housing.

` In the use of a self-retaining portable machine, it has been foundthat it is seldom that the fioor is suiiiciently level to cause themachine to be set in a true upright position, so that the line ofprojection of. the sand by the projector will be vertical for eiiicientfilling of the flasks. For this purpose, the base A is provided withlevelling devices for adjustable feed, so that when the base is setwhere the floor is irregular, it can be prop.- erly and quicklylevelled. A fixed foot is provided on the rear of the base and anadjustable foot 95 isprovided at each front corner of the base. In thepresent invention, the feet 95 are manually adjustable relatively to thebase. Each levelling device comprises a vertical plunger 96 fixed to oneof the feet V95 and slidably mounted in a socket 97, which is integrallyformed with a frame or brackets for carrying the operating mechanism forthe plunger, and is provided with a flange 98 which is secured by bolts99 to the base A.

The operating mechanism for Y each plunger 96 comprises a pinion 101which meshes with a rack 102 formed on one side of the upper end of theplunger, and is -fixed to a shaft 103 which is mounted in anti-frictionbearings 104l carried at the upper end of the socket 97; a gear 105,fixed to shaft 103, a pinion 106 meshing with gear and fixed Y to ashaft 107, which is mounted in a hub 108 which is integrally formed withsocket 97; a gear 109, rigid with pinion 106; a pinion 110, xed to acrank-shaft 111, which is mounted in a bearing carried in a hub 112which is also integrally formed withl the socket. 97, and a crank 113which is provided with a handle 114 and is connected by a pivot-pin 115to the outer end of shaft 111. Each shaft 111 is extended through thehousing body b, and its operating crank is attached to the outer endthereof, so that it will be accessible from the outside of the housing.A stop pin 116 is provided for each crank. The pivotal connection 115,between the shaft 111 and the crank permits the crank to be swungoutwardly, as indicated by dotted lines in Fig. 3a, to clear the stoppin'when it is ldesired to rotate the crank to operate the levellingdevice. When the crank is swung inwardly into the position shown in fulllines, the stop will act to prevent reverse rotation of the crank, sothat after the levelling device has been adjusted into its desiredposition, the crank and pin will serve as an automatic lock to retainthe gearing so that it will hold the base at the desired elevation. Aspring 117 is provided in thehub of each crank 113 and is interposedbetween the shaft 111 and the hub, so that, when the crank-handle isreleased by the operator, it will be automatically thrown into positionto be arrested by its stop pin. This construction exempliies a levellingdevice which is manually loperable by reducing .gearings,'which isenclosed in the housing, which is mounted in a unitary supportingstructure, so that it may be placed into and removed from the base as anentity, and which will be automatically locked to'prevent the base fromdropping when the crank is released. When the side plates b', b2 areremoved, ready access may be had to the reducing gearing for lubricationor inspection.

The invention exemplifies a portable molding machine oftheself-retaining type, in which a housing encloses the operating mechanismfor the sandconveying mechanism and levelling devices; in which thehousing is arched to shed sand; and in which readily removable sectionsor side plates are provided to provide ready access to said mechanismand the levelling devices. Also, a Vconstruction in whichk provision ismade for preventing sand in the sand-pocket from working into thehousing.

The invention is not to be understood as restricted to the details setforth, since these may be modified within the scope of the appendedclaims, without departing from the spirit and scope of the invention.

Having thus described the invention, what I claim as new and desire toVsecure by Letters Patent, is:

1. The combination with a molding machine, of a portable base for saidmachine, adapted to retain itself and the machine thereon station-ary ona floor, and a housing over and fixed to the base, the molding machinebeing mounted on the housing, and levelling mechanism mounted inside ofthe housing.

' 2. The combination with a molding machine-,- ofi' aw portable -biase`frsaid machine; adapted to*y retain itself and thep machine thereonstationarymanner;-afheusingffxedi to -ai-id"l extended? over'- thebase-,- thief molding=` machin-e'd bei-ngy mounted I on the housing;levelling devices mounted inside v of tliefho'usv ing, asand-conveyorlmounted v on the house ing; and; driving mechanism forytheL conveyor, mounted inside of the housing.r

3". The combination 1 withl a f molding mw chine` comlpi-ising sandiprojector, means to support the projector fso e iti can bennovedflater'allylto `project1 sand into diierent portions of'faskfs, andmechanism'for driving;A theI projector,v of aportable lsuipportingbasefor saidimachine adapted to retain itself land the-machine on ya IHoor,and ahousing lifxedf toland extendi-n-g'over the base, said meansbeingmounted on the upper portion of hou-sing and' levellingdevicest-mountedinside ofthe Housing.

' 4. VTlievr combination with? affmoldiingmaJ-I chine, of a-y portablesupporting b'ase for"l said machine adapted? to retain itself', and? themachine thereon stationary on a` floor; awliousirng ony which themachine is mounted; extend-ing' over the basetandcomprisiing ai bodyportion on whichhthe macl'i-ineissmountH ed',y extending over:` andiitxed to the baise;x airdlren'rovable sideplat'es, and* levelling-de#vifces mountedinside of the housiiigandil acLv ccssible when theside-plates areA removed.

4 5: The combination with'f-ameldingjmachine,l of a portable supportingbase" for said mach-ine adafpt'ed to 'retain itself and themachine-thereonstationary on a floor, a housing on which the machine ismounted, extending over the base, .and comprising a body-portion fixedto the base, and removable side-plates, levelling devices inside of thehousing, a sand conveyor, conveyor driving mechanism inside of thehousing, said driving mechanism and devices being accessible when theside plates are removed.

6. The combination of a molding-machine, a base for the machine, ahousing fixed to and extending over the base, and provided with wallsforming a sand-pocket, a sandelevator extended into said pocket, adriveshaft for the elevator extending across said pocket, and blades onthe shaft for directing sand to the elevator.

7. The combination of a molding-machine, -a base for the machine, ahousing iXed to and extending over the base, and provided with wallsforming a sand-pocket, a sand elevator extended into said pocket, adrive shaft for the elevator extending across said pocket, drivingmechanism for said shaft, disposed in the housing, and blades on theshafts for directing sand to the elevator.

8. The combination with a molding machine, of a self-retaining portablebase for the machine, a housing over and xed to the base, and alevelling device comprising a plunger, a support on the base, inside 'ofthe housing and provided With a guide for the plunger, speedreducinggearing carried by the Vsupport rin rthe housing, and coinprising ashaft extended through the housing to the Voutside thereof, and a crankon the outer end of said shaft.

l 9. The combination with a molding-machine o-a self-retaining portablebase for themaohine, a housing over and fixed to the base, and alevelling devieei comprising a plunger, a .support on the base, insideof the housing and provided With a guide for the plunger, speed-reducinggearing carried by y the support inthe housing, and comprising a shaftextended lthrough the housing to the outside thereof, a crankmovablyconnected to the outer end of said shaft, and a stop fory the crank.

10. The combinationvvith a molding-machine, of a self-retaining portable'base for thegmaehine, a housing over and ixed to the base,-and lalevelling device comprisingy a plunger, a support separate from andremovably secured to the base, inside of the housing and-,provided WithAa guide for the plunger, speed-reducing gearing carried by thesupportin the housing, and comprising ashaft extended 'through the housing tothe outside thereof, a crank movably connected to the outer endof saidshaft, and a stop for the crank. i K

Y Signed atChieago, Illinois, this 2nd day of February, 1926. l y I Y-ELMER O. BEARDSLEY. n WALTER F. PIPER.

